According to the Flagler County Sheriff's Office, the attack happened Thursday at 110 Bimini Lane.

The Flagler County mother volunteers at Second Chance Animal Shelter and was finishing up some work Thursday when the dog allegedly broke out of a cage and jumped into the passenger side window of her Toyota Sienna minivan.

"Once the dog got inside the vehicle, it went straight to her son, who was sitting in the middle row of the van, and latched on to his head, dragging him to the floor of the vehicle," deputies wrote in their report.

Deputies said the boy was bitten in his right eye, in the upper and lower parts of his mouth, under his chin and in various spots on his face and upper body. The child also lost a tooth during the attack, investigators said.

One of the children can be heard screaming and crying in the 911 call.

The mother and the daughter, who deputies did not name, were also bitten during the attack.

At one point, the mother was able to drag the dog from the vehicle and put it in a cage, but the dog broke free again, ran to the minivan and attacked the woman's daughter.

Amid large pools of blood and pieces of clothing ripped from her children's bodies, the mother again wrestled the dog away from the children and into a quarantine area before driving away and waiting for first responders.

Deputies said in their report that when they visited the family at a local hospital a short time later, each family member was still bleeding through bandages paramedics applied after the attack.

Doctors said the family is now in stable condition.

The dog is being held in quarantine for 10 days, but will be put down at the end of it, officials said.